George l



(No Model.)

. G. L. BARNEY.

KEYLESS' LOOK.

Patented July 21, 1896.

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UNITED STATES PATENT OFFICE.

GEORGE L. BARNEY, OF INDIANAPOLIS, INDIANA.

KEYLESS" LOCK.

SPECIFICATION forming part Of Letters Patent No. 564,268, dated July 21,1896.

Application filed January 24. 1895. serial No. 536,118. (No model.)

To all whom it may concern.-

Be it known that I, GEORGE L. BARNEY, a citizen of the United States,residing at Indianapolis, Marion county, State of Indiana, have inventedcertain new and useful Improvements in Keyless Locks, of which thefollowing is a specification.

My invention relates to improvements in permutation or combinationlocks, and while it is applicable to locks of various kinds it isdesigned more especially for such looks as are adapted to be applied tolock*boxes, drawers, desks, and similar articles of that general classthat are illustrated in my prior patent, No. 471,262. y A

My present invention has for its object to improve the construction ofsuch locks, to lessen their cost, and, further and more particularly, toprovide means whereby they shall be less liable to be fraudulentlyopened by unauthorized persons, as well as to provide 111 e'ans wherebythey may be more readily and easily opened and unlocked by an authorizedperson; and to these ends my invention consists in the various featuresof construction and arrangements of parts,and havinga mode of operationsubstantially as hereinafter more particularly pointed out.

Referring to the accompanying drawings, wherein one embodiment of myinvention is illustrated, Figure 1 is aplan or face view of a lock, theface-plate being partially cut away. Fig. 2 is a longitudinal verticalsection of the lock on the lines 2 2, Fig. 1.. Fig. 3 is a rear view ofthe lock with the rear plate removed, showing the construction of the operating parts. Fig. 4 is a perspective view of a latch-plate, and Fig. 5is a section showing a modification.

In the above drawings I have shown my invention as applied to apermutation-lock having two tumblers or wheels, with a single latchhaving two fingers or projections adapted to enter slots or notches inthe periphery of the wheels or tumblers, and while this is a convenientform in which to embody myinvention, it is evident that the variousfeatures of invention can be applied to looks of other forms and stillbe Within the spirit of my invention, and that the details ofconstruction can be varied to adapt the invention to the various formsto which it is applied.

One of the features of my present invention relates to the manner ofoperating the latch after the tumblers or wheels have been set to theirproper position to allow it to be operated.

Other features of my invention will be pointed out more particularlyhereinafter in connection with the construction which is illustrated inthe drawings, and which I will now proceed to describe.

The operative parts of the lock are preferably inclosed in a suitablecase, comprising a lock-plate A and an inclosing plate 13, which areproperly secured together, and preferably the lock-plate is providedwith a face-plate O. The lock-plate is preferably made of two separatepieces,suitably united together, in order to secure lightness andcheapness and adapt the plate for the purposes of this invention, and Ihave shown the lock-plate A as made of two separate plates A A eachcomposed of relatively thin metal, struck or pressed up into the desiredform, and provided with proper openings.

The plate A is preferably provided with a circular projection or ridge ato receive the dial hereinafter described, and the plate A is struck upor pressed up to form an inner projection or bearing-surface a for thetumbler, while both are provided with an opening or openings to, onwhich ispreferably fixed a bushing or bearing a for a knob-spindle,hereinafter described. The endsof the plate A are preferably turned up,as at (L to form a convenient means for attaching the rear case B. Inthis way not only can the plate be made relatively very light; but ithas relatively great strength, owing to the flanged or struck -upportions, and the parts can be cheaply and readily made and furnish avery substantial bearing for the knob-stems and other parts of the lock,and this construction is of great practical value.

The face-plate C, which may be of more ornamental metal, as brass orother similar metal or material, is provided 'with openings 0, adaptedto fit the ridge or ridges a, and

may be held in place in any suitable way, as, for instance, by screws1), which maybe used to hold all the parts of the lock-case together.

Suitably mounted on or connected with the lock-plate is a latch-plate D,and in the present instance this is arranged to slide upon the rear faceof the lock-plate between the two tumblers, one end of the plate beingslotted, as at D, to embrace a stud or projection A, and also beingprovided with a stud A working in a slot a in the lock-plate, thuspermitting the latch-plate to move on the lock-plate in a plane parallelthereto. This latch-plate is provided with an upturned portion D toreceive the latch E and to permit its moving freely therein, the latchbeing also provided with a reduced stem E, in the present instancepassing through an opening in the stud or projection A and a spring etends to press the latch outward through the portion D its movementsbeing limited by a pin e. It will thus be seen that the latch E has amovement in the latch-plate independently thereof against the spring,and it also has a movement with the latch-plate against the spring, andthis movement is accomplished in a manner hereinafter set forth.

It is further to be remarked that the latch plate is provided with oneor more dogs or fingers D two being shown in the present instance, tocooperate with the tumblers or disk -wheels hereinafter referred to. Thelatch-plate is also provided with some sort of means by which it may bemoved by the knob, and in the present instance I have shown a lip orprojection 1)", preferably formed integral with the latch-plate andprojecting slightly above the same in a convenient position to be struckand operated by an arm or other device moved by the knob.

Mounted on the faceplate is one or more dials F, which are preferablyfitted to fit within the ridge a, and a spring-washer f may beinterposed between the dial and lockplate when desirable. This dial maybe formed integral with or suitably attached to the stem G of the knobG, so as to readily move therewith, and the stem Gr fits loosely in thebearing a in the lock-plate, so that it may rotate freely therein. Theridge a is provided on its outer surface with one or more indicators ato 'aid in properly ad j usting the dial.

The stem G of the knob in the present instance is further reduced andhas an extension G and preferably on the shoulder thereof is looselymounted a tumbler or wheel II. Also mounted on the stem is an arm I, andinterposed between the tumbler and the arm is a washer I to preventfriction between the arm and tumbler, and this arm is adj ustablysecured to the stem portion G by any suitable means, and in the'presentinstance I have shown a pin J, passing through a hole in the stem, and aset-screw K for pressing the pin against the arm to prevent its 1novement. By this construction or some equivalent construction which may beused, the arm I may be adjusted 011 the stem to any position desired andsecured so as to rotate with the stem for the purposes hereinafter moreparticularly set forth.

The tumbler II may be of any desired construction, and I have shown itsedge as being toothed, and it is provided with a slot H to permit thedog or finger D to pass within the periphery of the tumbler when it isin proper position, and I also provide a stop or pin H mounted on itsinner face and projecting inwardly in position to be struck by the armI, so that the tumbler may be moved thereby.

The arm I is so arranged that it will pass by the lip or projection D ofthe latch-plate when it is rotated in one direction, but will engagetherewith and move the latch-plate when it is rotated in the oppositedirection, and for this purpose one of its edges may be curved or turnedslightly, as best indicated at t', Fig. 2, although, of course, it willread ily be understood that other constructions may be used foraccomplishing the same purpose, as, for instance, a tripping-pawl may bemounted on the arm, which will readily pass the projection in onedirection, but impinge upon it and move it in the other direction.

\Vhen more than one dial and knob are used in the look, as shown in thedrawings, it is unnecessary to provide more than one arm, and thetumbler, as H may be dished, as indicated in Fig. 2, or otherwiseformed, so as to lie in a plane parallel to but out of line with theplane of the tumbler lrl.

Such being the preferred construction of the parts, and they beingassembled as indicated in the drawings, their operation will be readilyunderstood, and supposing it is desired to open the lock, it will firstbe necessary to move the knob G3 to set the tumbler II in properposition to have its slot II coincide with one of the dogs D of thelatch plate, and this is done by having the tumbler adjusted on the knobso that when a certain predetermined letter on its dial comes oppositeor in certain relations to its indicator a the slot II will be in properposition to allow the latch-plate to be moved. Of course, it will beunderstood that this knob and tumbler are not necessary to the operationof my invention, or that there may be more than one if desired.

In order to move the tumbler II, the knob G is turned and the arm Irotated thereby until it impinges upon the pin H when the tumbler willbe rotated until the proper indicating-mark on the dial to which it hasbeen adjusted is opposite the indicating-mark a, on the plate, when theslot H is in proper position to permit the dog I) to enter within theperiphery of the tumbler. The knob is then E, when the lock is opened.

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ever, as the knob is released, the spring 6 will project the latch andlatch-plate into locking position. As above indicated, the arm is soarranged that in turning in one direction it will pass freely by the lipor proj ection D so that the tumbler may be readily adjusted in properposition, but when it is moved in the opposite direction it will impingeupon the lip and either be prevented from moving farther in thatdirection when the tumblers are not in proper position, or permit it towithdraw the latch and latchplate when they are in proper position.

By simply loosening the securing device, as, for instance, the screw K,the arm I may be adjusted in any proper or desired relation to the stopor pin H so that the combination can be readily changed.

It will thus be seen that not only is this construction exceedinglysimple, cheap, and light, but that it permits the latch to be withdrawnby the same knob that adjusts at least one of the tumblers, and itfurther reduces the chances of the lock being opened by unauthorizedpersons, and when more than one tumbler is used it is convenient todesignate the final latch-operating knob bya difference in construction,as by the cross-pin g, or other projecting portion on the knob G.

In Fig. 5 I have shown another means for mounting the tumbler to permitit being turned by the arm to bring the notch in proper position toreceive the dog D and to permit the arm to be turned in the reversedirection to move the latch without disturbing the tumbler. In this casethere is a cylindrical Washer 1 surrounding the stem G forming a collarfor the tumbler H,and a spring-washer I is interposed between thetumbler and the collar on the cylindrical washer, and the other partsare arranged as in the other construction. This permits the arm I to betightly clamped and adjusted, but does not turn the tumbler except whenthe arm I bears against the pin H as above set forth.

Having thus described the preferred embodiment of my invention andpointed out the principles on which it is constructed and operated,without limiting myself to the precise construction and arrangement ofparts set forth, what I claim is- 1. In a permutation-lock, a lock-platecomposed of two separate pieces united together and having ridges on oneside, and an opening through both of the pieces, substantially asdescribed.

2. In a permutation-lock, a lock-plate composed of two separate piecesunited together and having ridges formed on one side, an opening throughboth the pieces, and a bearingring secured in said opening,substantially as described.

3. In a permutation-lock, a lock-plate composed of two separate piecesunited together, a ridge on one face of the lock-plate, a dialplatesupported on said lock-plate within the ridge, a bearing or projectionon the opposite face of the lock-plate, a tumbler supported on saidbearing, and an opening through the lock-plate to receive the knob,substantially as described.

4. In a permutation-lock, the combination with the lock-plate having aridge within which to support the dial, of a face-plate having anopening surrounding said ridge, and a knob extending through theface-plate and lock-plate and carrying the dial, substantially asdescribed.

5. In a permutation-lock, the combination with a knob and dial-plate, ofa tumbler loosely mounted on the knob-stem and having a stud, alatch-plate having a fixed lip, a bolt arranged to be withdrawn by saidlatch-plate, and an arm connected to the knob-stem and adapted to bearon the stud to move the tumbler when moved in one direction and to bearon the lip to operate the latch-plate when moved in the other direction,substantially as described.

6. In a permutation-lock, the combination with a tumbler having a slotand astud, of a spring-actuated latch having a fixed lip or projection,a knob having an arm adjustably attached thereto adapted to bear on thestud to move the tumbler and to slip over the lip when moved in onedirection and to contact with the lip to move the latch when moved inthe opposite direction, substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

GEORGE L. BARNEY.

Witnesses:

JOHN L. GRIFFITHS, ALFRED F. Porrs.

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